private async void LineName_OnDropDownClosed(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(StopName.Text) && !string.IsNullOrEmpty(LineName.Text))
{
var lineItems = await NewFavoriteStop.GetDirections(StopName.Text, LineName.Text);
Direction.ItemsSource = lineItems.Values;
}
}
